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Dometic RV Water Heater - 10,000 Btu - Propane - 6 Gallon Tank - Black Door
Dometic

Dometic RV Water Heater - 10,000 Btu - Propane - 6 Gallon Tank - Black Door

Part Number: DMC43RR
In Stock
$581.93
RV Water Heater
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This water heater's efficient 10,000 Btu burner recovers up to 12 gallons of water per hour. Unit is small and lightweight for an easy fit in your RV. Plus, it does not use an anode rod, so there's one less thing to maintain. Great Prices for the best rv water heater from Dometic. Dometic RV Water Heater - 10,000 Btu - Propane - 6 Gallon Tank - Black Door part number DMC43RR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (163)
  • Q & A (0)
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Dometic RV Water Heater - DMC43RR

  • Standard Water Heater
  • Propane
  • Black Door
  • Dometic
  • 6 Gallon Tank
  • 10000 Btu or Less
  • 12-3/4L x 12-3/4W x 19-7/8D Inch Cutout
  • 12 Volts

This water heater's efficient 10,000 Btu burner recovers up to 12 gallons of water per hour. Unit is small and lightweight for an easy fit in your RV. Plus, it does not use an anode rod, so there's one less thing to maintain.


Features:

  • Designed as a direct-fit replacement for standard 6-gallon RV water heaters using a 12-7/8" x 12-7/8" cutout
  • Quick-recovery water heater provides a long-lasting supply of hot water with a small, lightweight tank
    • Produces up to 12 gallons of hot water per hour
  • Provides hot water for single-fixture use with a 6-gallon tank and 10,000 Btu burner
  • Hot water supply is limited by tank capacity and requires recovery time after extended use
  • Automatic DSI gas pilot heats water once destination is reached
    • Relights automatically until heater is switched off
    • U-shaped flue tube distributes more heat from the burner out to the water
    • 80-percent heating efficiency rating
  • Operates on 12V DC power for ignition and control system
  • Aluminum-clad tank reduces calcium buildup and limits corrosion
    • Eliminates the need for an anode rod
  • Thermostatically controlled to prevent overheating
    • High-temperature limit switch automatically shuts off unit
  • Pressure-relief valve prevents excessive water expansion
    • Air pocket in tank keeps valve from dripping in your cabinet
  • Combustion shutter adjusts oxygen level in pilot light for high altitudes
    • Externally sealed to keep unit clean
  • Drain plug is nylon to prevent rust
  • Open unit can be hooked up and tested before sidewalls are sealed
  • Lightweight and compact for easy fit
  • Includes conversion kit door for replacing legacy water heaters with larger exterior openings
  • CSA certified
  • Made in the USA


Specs:

  • Heating capacity: 10,000 Btu
  • Overall dimensions: 12-3/4" tall x 12-3/4" wide x 19-7/8" deep
  • Cutout dimensions: 12-7/8" tall x 12-7/8" wide x 19-1/2" deep
  • Tank capacity: 6 gallons
  • Weight: 18 lbs
  • Voltage: 12V DC
  • Wattage: 1,400 watts
  • Water connection: 1/2" NPT
  • Gas connection: 3/8" outer diameter (LP propane)
  • 2-Year warranty


9600024378 Dometic Atwood Quick Recovery RV Water Heater with Door Kit - Propane Gas - Direct Spark Ignite - 12 Volts - 1400 Watts - 10,000 Btu - 6 Gallon Tank

Model WH-6GA

Replaces 9600024379

94951 Water Heater Door Conversion Kit for 6 Gallon Electric and Gas Water Heater - Black

4471011654

Installation Details DMC43RR Installation instructions



Ratings & Reviews

4.6

163 reviews
Review sort icon
This water heater's efficient 10,000 Btu burner recovers up to 12 gallons of water per hour. Unit is small and lightweight for an easy fit in your RV. Plus, it does not use an anode rod, so there's one less thing to maintain.

by:

We have Hot Water ! We live in our RV full time so we needed a Hot Water Heater of good quality. Time will tell if this Dometic Hot Water Heater is as good as the old Atwood which it replaced. The packaging was good ! Hot Water Heater appears to be well made. No problems installing the directions were clear and it fired right up. This replacement Hot Water Heater is smaller than our original so we purchased the enlarged door kit which fit perfectly. Great communication with etrailer which helped us find the correct Water Heater for our application. There website information was accurate and we had no problem contacting a human voice when needed.. We are Happy Campers !



by:

Easy installation! Works great!



by:

Installation was easy, I did have to raise cabinet drawer up about 1 inch to allow clearance at the back for the water connections. It is quieter than my older (2000) Dometic and hot water recovery is a little faster.



by:

Needed a water heater and this was the best one to fit, after reading the directions front to back it took only a couple hours total to get it in my RV. Water heated up immediately and everything has run great, of course it's only been a few days but so far so good, my only issue is that there is a back order on the door cover.. so it's totally exposed to any elements and I have put temporarily back on the door that came with the RV ( even though it doesn't fit) it's just so it's not totally a open hole to the outside, hoping it is available sooner than later.



by:

This water heater was meant to replace an older Dometic model which was heavier and had a larger opening. We appreciate the new style and feel it works well. We had to buy a door conversion kit. E-Trailer was wonderful in getting it shipped in a prompt fashion. We have just a few recommendations for Dometic for this model. 1. Please provide a silver colored door conversion kit for Airstreamers. We ended up painting it with a high heat silver spray paint. Just added unnecessary steps to the install. 2. Please provide self-tapping screws for the actual unit to be put back in place. Our older model had 10 screws and we used them all, and then some. So, we ended up halfway thru the install only to find out we were missing 10 screws. None of the holes in the new frame lined up with the old model. Also, a bit annoying. It would be great to include electrical connectors to snap the wires together and include a low profile outlet to plug the new model into. We were able to cobble things together from Home Depot, Lowes, Menards...but it would be even better if these items were offered or suggested by e-Trailer during the purchase. And we can add Butyl tape to that list. 3. We also wish the door conversion kit was a bit more seamless. We screwed in the corner supports on the water heater, only to find out we needed to take them back out and use the door kit corners. Again, the product is better but the devil is in the details. Glad this project is done.



by:

Thanks great item every thing worked out



by:

Easy install, great directions and reliable equipment. Extra shout out to etrailer.com for helping me get it much faster since what I ordered at first wasn't immediately available.



by:

My water heater leaked and It was the old style that is no longer available. This one needed some conversion but it fit. I even made a pan to go under it in case it leaked again.
I used two 1/2” supply lines to make the connections because they were in different locations. Worked like a champ!
Had to use the door conversion which fit perfect.



by:

Very easy to install



by:

It took longer to get it delivered than thay had told me



by:

So far so good!!



by:

It appears just fine. I have not yet installed it, but based on other reviews im sure it will be fine.



by:

It's been one year since we replaced the water heater in my 2006 Jayco Feather and there are no complaints. The new water heater is working great and etrailer was a huge help when I purchased it. If you're replacing a water heater, I would read the Question and Answer section on here for the model you are going to buy. And also pay close attention and figure out if your current water heater door will work with the new water heater. They may vent in different places.



by:

The purchasing and shipping process for etrailer was amazing. I made this purchase over a weekend to have it arrive on a Wednesday as the website indicated. There was a problem processing a payment and I was contacted several times by Andy to ensure the problem was rectified and the heater was shipped in a timely fashion. My water heater arrived a day earlier than they estimated on top of the processing issues and once it was delivered, I received an email confirmation which also included a link to documents related to the installation process

I only had two minor issues with the heater, but they do not negatively affect etrailer.com. It arrived with mounting options for the front door on the top corners instead of with the center tab as indicated in the pictures and also how my previous heater was setup. I thought it was going to be an issue as I didn’t purchase a new door, but I just moved one mount to the center position.

Second, this water heater did not come with any mounting screws. I’m sure that’s Dometic’s choice and I was able to reuse my old hardware. So just a heads up for anyone in the future.

Overall, thank you etrailer.com, everything worked out great!
The install process was easy and it’s working better than my old heater ever did.



by:

The Dometic design is mind boggling!!
1-why
the electric plug?
2-why put the propane heat disbursement at the top which makes no sense because it could and will burn the RV. The flange is not very thick to stop that.
3- they couldn't fit the original hole that Atwood had? So we have to retro fit it with additional sides. The thermostat seems to run hotter.
It's not the sellers fault, it the maker.



by:

i had to replace my Atwood Water Heater again thanks to the extremely HIGH calcium content in the water where i was living in Northern California. This NEW water heater was a simple install. Everything fit perfectly and i had it going in about 2 hours. NO complaints what so ever. it works Great.



by:

Water heater showed up on time, it was the the right application due to Atwood being bought out by Dometic, fit perfect with conversion door.



by:

Water heater was delivered yesterday. I just installed it for a customer this morning. Everything went smoothly. Tested the water heater before finishing sealing up the outside flange with butyl and screws. Heater was working great on both propane and electric. No leaks the customer was very happy to have it working again.



by:

Arrived a day early... GREAT!!! MFG packaging brought the rating to a 4. The mounting flange was bent on 3 of the 4 sides, due to no additional packing inside the mgr box. The flange was easily bent back into shape.
Install was straight forward, per mfg instructions.



by:

Propane works great! The electric side not as hot water easy install, yeah right. Takes knowledge to install, which I have , the rerouted propane line was a challenge, under carriage to redo line and flare fittings , also a better description of wiring of gas and electric low voltage, I went with colors to match but didn’t want to damage unit



by:

I'm giving this 4 stars, because The water heater and door kit work to replace my leaky Atwood water heater. By comparison, this beats the Atwood by a large margin. The drain cap is very easy to get to, for winterizing.
Now, I held back the 5th star only because I've had to redo the plumbing. I know, that would have been asking too much, but I also would have gone with 5 stars, if the color of the door matched my RV. *wink*



by:

Install was easy. Only disappointment is that when the propane burner is running to heat the water, a light howling like noise comes from the heat exchanger. Not a huge deal just something future buyers should be aware of beforehand. Super satisfied with performance, this one makes a full tank of hot water in about 20 minutes or less.



by:

As always with ETrailer, we received great assistance and accurate information. The water heater took a couple of hours to install as a couple of adjustments needed to be made to get it into the space. We are up and running again thanks to ETrailer and Andy!



by:

Exactly what I ordered and it was plug and play. Delivered in 3 days which was a plus. Thank you



by:

Kelly at eTrailer is great! We run a small but very busy RV repair business and love all our friends at eTrailer. The parts come quick and are fantastic quality!

Kate F. profile picture
Etrailer Expert

Kate F.

4/23/2026

Thanks for the shout out! Yes, Kelly is great =) Thanks for being a loyal etrailer neighbor (customer)!


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See what our Experts say about this Dometic RV Water Heater

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Do you have a question about this RV Water Heater?


Info for this part was:

Employee Steven C
Installed by:
Steven C
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Updated by:
Matthew S
Employee Amanda M
Edited by:
Amanda M
Employee Cody B
Written by:
Cody B

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